Seasons & episodes
1 season · 16 episodes
Episode 01
Episode 1
Coming from two different backgrounds, Gong Ryong and Eve Kim embark on a space mission. But trouble strikes after launch, jeopardizing their expedition.
Episode 02
Episode 2
Upon arriving in space, Ryong panics as Eve threatens to ruin his secret mission. Shortly after, a crisis emerges, forcing Ryong to attempt a novel feat.
Episode 03
Episode 3
Determined to carry out the secret mission himself, Ryong tries to circumvent Kang Kang-su. During a space walk, Eve experiences a sudden problem.
Episode 04
Episode 4
With Eve's life in jeopardy, Ryong watches helplessly — as protocol prevents him from saving her. With every passing second, she loses precious oxygen.
Episode 05
Episode 5
Following Ryong's sudden confession, Eve discovers a hurtful truth unfolding back on Earth. Soon, she learns of an even more disturbing reality in space.
Episode 06
Episode 6
Eve discovers an unethical secret, forcing her to act decisively despite Ryong's objection — which drives him to take matters into his own hands.
Episode 07
Episode 7
After Ryong learns the results of his experiment, a potential calamity approaches the crew — threatening his safety and the survival of his work.
Episode 08
Episode 8
Eve risks everything to heroically rescue Ryong, facing treacherous danger. However, returning home seems increasingly improbable.
Episode 09
Episode 9
With Ryong and Eve stranded in space, those on Earth scramble to save them — albeit for different reasons. Park Dong-a steps forward to take the risk.
Episode 10
Episode 10
Despite their promises in space, Ryong and Eve return to earthly realities — facing duty, recovery, suspicions, confessions and lingering longing.
Episode 11
Episode 11
While Ryong and Eve adjust to normal life, Chief Kang requests a detailed report of their time in space — leading them to agonize over their story.
Episode 12
Episode 12
Choi Go-eun confronts Eve after encountering her at Ryong's place. Chief Kang advises Eve not to see Ryong again — despite Eve's true desires.
Episode 13
Episode 13
Chief Kang summons Ryong and Kang Kang-su regarding their forbidden experiment in space. Eve uncovers a painful truth about her past.
Episode 14
Episode 14
A deployed investigative team discovers Ryong's cell phone in space — sparking an inquiry into who is responsible for the unauthorized events there.
Episode 15
Episode 15
The consequences of the experiment in space finally manifests, leaving Ryong devastated. Later, Eve learns that her life is about to change forever.
Episode 16
Episode 16
As Eve's new state prevents her from coming back to Earth, Ryong commits to joining her in space. Once there, they debate a risky return to Earth.
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